The invention discloses a plot wheat precision seeding device which primarily comprises a seed box, a fast seed cleaning insertion board and a seed-metering device. The plot wheat precision seeding device is characterized in that the seed box is connected to the vertical row hole wheel type seeder through a bolt, and the fast seed cleaning insertion board is mounted in a slot in the seed box. Whenseeds need to be replaced quickly in plot seeding, the insertion board on the lower part of the seed box is pulled out, so that the seeds flow from the side face of the box body to achieve a purposeof cleaning the seeds quickly, and the operating efficiency is improved.